Datafiles
- Twins_by_year_2018 Download .TXT file Open in Data Desk ?
- Methods: Correlation, Inference, Re-expression, Regression
- Source: www.cdc.gov/nchs/births.htm
- Number of Cases: 39
- Excerpt: In January 2012, the New York Times published a story called “Twin Births in the U.S., Like Never Before,” in which they reported a 76 percent increase in the rate of twin births from 1980 to 2009. The dataset gives the number of twin births each year (per 1000 live births). Can you confirm the […]
- Unemployment_2017 Download .TXT file Open in Data Desk ?
- Methods: Displaying Quantitative Data, Summarizing Quantitative Data
- Source: https://data.bls.gov/timeseries/LNS14000000
- Number of Cases: 176
- Excerpt: US Unemployment rate from 1/1/2003 to 8/1/17.
- Used_BMW_M5_2017 Download .TXT file Open in Data Desk ?
- Methods: Correlation, Regression, Scatterplot
- Source: Kelly's Blue Book:https://www.kbb.com/cars-for-sale/accessed on 31 Aug 2017 using zip code 94305 200 mile radius BMW M5
- Number of Cases: 36
- Excerpt:
- Used_BMW_prices_2017 Download .TXT file Open in Data Desk ?
- Methods:
- Source:
- Number of Cases: 33
- Excerpt:
- Used_cars_2014 Download .TXT file Open in Data Desk ?
- Methods: R-squared, Regression, Residuals
- Source: Carmax.com search for Toyota Corollas for sale within 250 radius of Redlands, CA in 2014
- Number of Cases: 13
- Excerpt: How does the age of a used car influence its price? This is a small enough data set to find a model with a calculator.
- Used_Civics_2017 Download .TXT file Open in Data Desk ?
- Methods: Correlation, Regression, Scatterplot
- Source: www.autotrader.comaccessed on 22 Jan 2017 with a search for Honda Civics for sale by owner.
- Number of Cases: 55
- Excerpt: The web site www.autotrader.com lists cars for sale. On January 22 2017, it listed 55 used Honda Civics for sale by owner. From those listings, we extracted the asking price ($), the mileage, and the model year (from which we computed the age of the car at the time the data were collected Questions include […]
- Used_CIvics_2020 Download .TXT file Open in Data Desk ?
- Methods: Multiple Regression Inference, Regression Inference
- Source: www.autotrader.com accessed on 22 Jan 2017 with a search for Honda Civics for sale by owner.
- Number of Cases: 55
- Excerpt: The web site www.autotrader.com lists cars for sale. On January 22 2017, it listed 55 used Honda Civics for sale by owner. From those listings, we extracted the asking price ($), the mileage, and the model year (from which we computed the age of the car at the time the data were collected Questions include […]
- Used_convertables_2020 Download .TXT file Open in Data Desk ?
- Methods: R-squared, Regression, Residuals
- Source: https://www.carfax.com
- Number of Cases: 26
- Excerpt: Carfax.com lists used cars available for sale in your area. A search for a convertible in July of 2020 turned up these data:
- USGDP 2024 Download .TXT file Open in Data Desk ?
- Methods:
- Source: The data give the gross domestic product (GDP) of the United States in trillions of 2012 dollars and time.
- Number of Cases: 96
- Excerpt: The gross domestic product (GDP) of the United States in trillions of 2012 dollars and time.
- USGDP_2016 Download .TXT file Open in Data Desk ?
- Methods: Regression
- Source: http://www.multpl.com/us-gdp-inflation-adjusted/table
- Number of Cases: 67
- Excerpt: The data give the gross domestic product (GDP) of the United States in trillions of 2009 dollars and time.
- USGDP_2020 Download .TXT file Open in Data Desk ?
- Methods: Outliers, Re-expression, Regression, Residuals
- Source: http://www.multpl.com/us-gdp-inflation-adjusted/table
- Number of Cases: 71
- Excerpt: 9The data give the gross domestic product (GDP) of the United States in trillions of 2012 dollars and time.
- Vehicle_weights Download .TXT file Open in Data Desk ?
- Methods: Blocking, Correlation, Paired Data, Re-expression, Regression, Scatterplot
- Source: The Minnesota Department of Transportation
- Number of Cases: 10
- Excerpt: The Minnesota Department of Transportation hoped that they could measure the weights of big trucks without actually stopping the vehicles by using a newly developed “weight-in-motion” scale. To see if the new device was accurate, they conducted a calibration test. They weighed several stopped trucks (Static Weight) and assumed that this weight was correct. Then […]